Poland’s main opposition conservative Law and Justice (PiS) party overtook the ruling liberal Civic Platform (PO), for the first time in years, according to a survey by pollster TNS Polska for public broadcaster TVP Info.

The opinion poll, released on Friday, showed, 39% of respondents said they would vote for PiS if an election was held in October against 33% voter support for PO.

Left-wing Democratic Left Alliance (SLD) enjoys a 9% voter support, while junior coalition partner Polish People’s Party (PSL) on par with the liberal Palikot Movement recorded support from 5% of respondents, according to the poll.

The poll comes after PiS named independent sociology professor Piotr Glinski as the non-partisan candidate for Prime Minister, who will challenge Donald Tusk's government in a planned constructive vote of no confidence.

Earlier, last Saturday, during PiS congress in Warsaw PiS leader Jaroslaw Kaczynski urged his followers to unite against the government policies. According to Kaczynski a non-parliamentary government would be best for Poland in its present situation. "No social problems are being tackled. Unemployment is on the rise, Poles are leaving their country and our public finances are in crisis", Kaczynski said of Tusk's government.

Last weekend tens of thousands of Poles protested in the Polish capital of Warsaw against the lack of social dialogue, retirement age increase as well as in defense of civic freedoms during "Wake up, Poland!" demonstration that which organized by PiS in cooperation with NSZZ Solidarnosc trade union.